Combined metal-cutting machine



June 9, 1925. 1,540,899

F. MULLER COMBINED METAL CUTTING MACHINE Filed Dec. 3 11 Sheets-Sheet 1 June 9, 1925.

F. MULLER COMBINED METAL CUTTING MACHINE 11 Sheets-Shet', 2

Filed Dec. 31, 1921 F. MULLER COMBINED METAL CUTTING MACHINE June 9, 1925.

FiledDeC. 31,

1921 11 Sheets-Sheet 5 June 9, 1925. 1,540,899

F. MULLER COMBINED METAL CUTTING MACHINE Filed Deb. 51, 1921 11 Sheets-Sh'et' 4 11 Sheets-6mm 5 F. MULLER COMBINED METAL CUTTING MACHINE Filed Dec. 51, 1921 June 9, 1925.

Jun 9, 1925.

F. MULLER COMBINED METAL CUTTING MACHINE v Filed Dec. 51, 1921 11 Sheets-Sheet 6 H611. FIGJZ.

1 l I h ammo?! June 9,1925. 1,546,899

F. MULLER COMBINED METAL CUTTING MACHINE Filed Dec. 31, 1921 I 11 sheets-sheet 7 42 4a l m i u 41 5* h numx? 392 Elmo/wt 33; Maya/67141241.

0%edmc/LWMa.

June 9, 1925. 1,540,899

F. MU LLER comsmmn METAL CUTTING MACHINE Filed Dec. 31, 1921 11 Sheets-Sheet 8 11 sheetssheet 9 A: 6 31/6441, avid/run June 9; 1925.

F. MULLER COMBINED METAL CUTTING MACHINE Filed Dec. 31, 1921 U we F T a T J v w, \\TEIW M m v In June s), was. 1,540,899

. F. MULLER COMBINED METAL CUTTING MACHINE Filed Dec. 51, 1921 11 Sheets-Sheet 1 E658.

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F. MULLER COMBINED METAL CUTTING MACHINE Filed Dec. 31, 1921 i 11 Sheets-Sheet 11 Worm/9 Patented June 9, 1925. W- i UNIT STATES I 1 ,54as99 PATENT oFrlcnl;

rnrnnnnicn Manna, ornnn'rronn, conuncrrcur, essrenon rornar'r & w n'r- NEY COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW JERSEY.

ooivrnrnnn METAL-CUTTING ivrncnrivn.

Application filed December 31, 1921. i. Serial Nos 526,121.

To all whom it may concern:

Be it known that I, FRIEDERICH MULLER, a

citizen of the UnitedStates, residing at Hartford, inthe county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Combined Metal-Cutting Machines, of which the fol lowing is a specification. My invention relates to machine tools and particularly to combined machines for making thread dies. ()ne object of my invention is to provide an automatic die making machine that shall simultaneously perform a number of operations on different blank dies atdiflerent stations and that shall move each blank die successively into operative relation to each station by an indexing operation.

Another object of my invention is to provide an automatic machine that shall comprise a turret carrying a plurality of blanks, means for indexing the turret to move each blank successively into operative relation toa drilling station, and means located at said station for cutting an axial slotin each blank and for drilling a hole through each blank from each side of the turret. v

Another object of my invention is to pro vide an automatic machine that shall comprise a turret carrying a plurality of blanks, each having a tapped hole in the center thereof, means for indexing the turret to bring each-blank successively into operative relation to. drilling and counter-boring stat-ions, means located at eachof the drilling stations for simultaneously drilling tWo holes through each blank adjacent to the tapped hole, and means located at each counterborlng station for simultaneously counter-boring two of the drilled holes to extend into the tapped hole and form cut-ting edges. 7 V r Another object of my invention is to provide an automatic machine that shall com prise a turret carrying a plurality of blanks each having a tapped hole in the center thereof and having portions of the side of each tapped hole cut away to form cutting edges, means for indexing the turret to bring'each blank successively into operative relation to achamferingstation, and means located at the chamfering station for relieving each cutting edge. Said chamfering means comprising a rotatable chamfering tool, a rotatable sleeve member for supporting. the rotatable tool,-means for varying theaxis of rotation of'the tool relative to the axisof rotation of the sleeve member, indexingmechanism:comprising two notched plates mounted on said sleeve member, and means-for operating said indexing mechanism to intermittently give the sleeve mechanism a movement of-rotation While recipro eating the tool and thesleevemember to relieve the cutting edges on each blank adjacent to'one' sidethereof. 1 V

A furtherobject of my invention is to provide a combined machine that shall comprise a turret carrying a plurality of die blanks each having a tapped hole in the center, a plurality of. stations for loading and customary to perform all the drilling, &

counter-boring .and' auxiliary operations manually Without the aid of automatic machinery. Such a method of manufacturing is not only expensive, but fails to produce dies as accurately as can be made. by automatic machines.

In a machine constructed in accordance With my invention,- a blank-carryingturret is provided Which is automatically indexed to bring each of the blanks successively into operative relation to nine stations. The blanks, carried by: the turret, are preferably shaped according to the desired shapeof the finished blank, and each blank has a tapped hole in the center. I Two-of the nine stations serve as loading and unloading stations and preferably the loading and unloading of the blanks in the turret is effected 'inanually; The blank, Wheninserted' in the turret, is first moved to a stamping station Where an imprintismade thereon from a fixed stampblanks as a final operation .and, in many; eases suchstamping operation distorts the blank.

Adjacent to the station jfQf-TSIMHPlDgthfi blanks is a station for cutting grooves in thewside sot each blank; The i grooves serve as aa aneans for fixedly holdin'g 'Sthe- (30111 pleted: blank vima-diwstoek. .The; grooving of each lblank-.isaaecomplished'iby Z tWO imilling cutters wtrhioh are ifirs't sinovediaxially into i-operative relation :to the wbla-nk and then are nnoved rtranfsversely 1 into iengagiement with the-blank. Sue-h' axial and *transverse movement of =the milling cutters is controlled by camimembersawhich sare epere which control the stamping 1 and -grooving I indexing operation. .7

ated in timed relation to the indexing of the turret... V, .1 4 r A slotting and 'drillingistationis sprovided aidjacent to;thezgroovin grstation for cuttinganaaxiala slot in'zeaoh iblankiand also for Simultaneously drilling "two holes through each eblank :adj acent to the tapped hole I in the center. The islot,.-in-th e i s-idejof the blank,- ris-cut by; aipointed 'en'd' milling cutter at. the 5 saine time as the lho'les farebeing' drilled through the blank, and preferabiy, the two holes in the: blank are drilled froinl oppositessides of theaturret. l he'drilling' and "slotting operations are "controlled by cam inemberswvhich i are 'mounted} on a 5 ca m shaft. The cani 'shaftzalso carries the camrmembers of theblank-s. Moreoven the amine-a controls the indexing of the'i'turret and accordingly the drilling iand :tll6' SliDttl11g l operations are effected in timed relation to the .At theistation a'dja'centIto; the; drilling and grooving :statioin two additional holes are drilled in :each l blank. 5 Such? additional holes are 5 drilled in spaced relation :to the #tap'ped hole. in-fthv center ofrthe b'larilc and tofthetwo holes drilled at the lasth station. The holes "are preferably drilled from opposite sid'esjofthe turret-"and the 'drilling ='is 6on trolled by cam membersxwhieh are 'inounted on the} camshaft. Means is provided at: this Stal lOni -LSlVe'll: as attheJdril-lingzand slotting sliatioliiito; accurately adjust the positionv of the drillingtool in' accordance With'a ny ele- SirsdSiZeQ EbIank- 1 (Elie tWost-ations adjacentq tdthe drilling station contains similar-apparatus which performs sim'ilar operations. In makingzia thread ;die, it is; necessary to cut away i portions of the side Iofithe tapp d 1101c i s-th J center of: theblankin orderrtoQfor mimltting edges. Ifrport ons ofthe -.side;nf the;tapped At the present tii'neit isc"usto1nary'to stamp the hole were cut away by a drilling operation, it would be difiicult to maintain the drill in correct alignment and, moreover, "it would lredifiieult to prevent tlie'kl-rill from destroying the threads in the tapped hole at the center. v Accordingly, holes are first drilled -in v the "blank adjacent to the tapped hole and then 'such'tlrilled holesare' co'ufiterbored to extend into the tapped hole and form cutting edges. At the two stations adjacent-topthe drilling station such counterboring operations are efl ected. At each of said counterboring :stations tWYO f vathe drilled holes are counterbord 2 and 2 prefer b y. hole is" counterboiieditrom leach side of i the turret... "The .countefrboring. operations are controlled, by cam members flill'llQh fa'lfe nil'llllltetl OIl thezcai-n shaft; LAQ Q li g Y, the counterhoring operations QIG-fifictfldjn timed relation to thezin'defxingzof the turret.

At the station adjacent -;to fiche countrboring stations: and lneaitgto the unloading station, the cutting edges, which have been i'oi'mecl' on the,blank,gare relieved either ad jacent one "side of the blank or, adjacent. both sides-ofthe blank. Preferably-the cutting edges areg're'lieved;adjacent iboth'js'i des of; the blankuinorder,tozperniitpthe finished blank .be interchangeably fitted in a Y die stock. The relievingzofithe cutting edges isyprefe-rablyi effected by means of 3a chamfering tool. The chainfering tool'j-is cOnStantlyE tated and is; mounted in a sleeve mechanism which is indexed to permit the relieving of theivarious cutting edges. -Meansis Provided. for adjusting the :axis of irotat'ion of the chamrferiiig tool relative {to the axis of' rotation. of the sleeve mechanism; in ordferwto provide for aaceurately relieving the cutting edges in: different-sized blanks. Thesleeve mechanism is wmouilted on a slide which is controlled by 7.1a, 1 cam 1 member mounted a on the camshaft. Such=slideis operatedin-accordance with the 'nurribe rj-of euttingledges wliioh rare-to be relieved. In inyijpreferred structure,'= the;.1n'echanism 1for indexing ithe sleeve vme'chanism comprises two notched plates which are fixedly-mounted on the plates to control the indexing operation in ac ordan e with them emen t-h lide. '1 th i abo m tion d s r re, he sli serves to yIIlOVgG the 'chamferingtool into, engagement with the 1blank t0 relieve. one cuttingie ge- .U p thdr wa Of the; chant fering tool," the sleeve mechanism is indexed to; place the Tchamfering tool in position .to

be moved into engagement with the next cutting edge. It the cutting'edges are to be relieved adjacent to each side of the blank, a chamt'ering tool is located on each side of the blank-carrying turret.

I The above operations are performed simultaneously at the various stations. The blanks, when delivered at .the unloading station, need only to have the slot, cut in the side. thereof, extended into one of the drilled holes in order to be incondition for. hardening. i

In the accompanying drawings Figure 1 is a front elevational views]? a machine constructed in accordance with my invention. l Fig. 2 is a rear elevational view machineshown in Fig. 1.

Fig. 3 is a leftend elevational view of the machine, as shown in Fig. 1.

Fig.4 is a rightend elevational view of the machine, as shown in Fig. 1..

, Fig. 5 is a sectional view taken along theline5-5of Fig. 1.

Fig. 6 is a plan view of the: head memhers which carry the milling cutters for cutting grooves in the blanks.

Fig. 7 is a sectional View taken along the line 77 of Fig. 6. i

Fig. 8'is a sectional view of the pointed end fmilling cutter mechanisnnthe section being taken along the'line 88 of Fig. 9.

Fig. 9 is an end view of the pointed end of the milling cutter mechanism considering the axis of the cutter to be. rotated to a horizontal position.

Figs. 10 and 11 are respeotivelyend and side views ofa completed thread die.

.Fig.- 12 is a sectional view taken along the line 12-12 of Fig. 10..

Fig.- 13 is a sectional view of the rocklever roller stud taken alongthe line,13l.1=3"

of Fig. 3. a

Fig. 14 is afragmentary view showing the means forholdinga blank in the turret. .Fig.,15 is a sectional view taken along the line 15-15 of Fig. 14:.

. Figs. 16 and17 are planand endviews of a work bushing: 3 l Fig. 18 is a sectional view of the means for holding the turret-supporting shaft in set position. l 1

Fig. 19 is a sectional view oi the differ ential gear mechanism which is connected to the pulley supplying power to the cam shaft. Fig. 20 is an: end view 01"? the difierential gear mechanism shown in Fig. 19.

Fig. 21 .is'a sectional view of one, of the drilling heads and the flexible shaft connected to it. j a i a. Fig. 22 is a sectiontaken along the line 2222 of Fig. 21. u Fig. 23 is a partial plan view of one of L drilling heads.

Figs. 2a'nd- 25 are respectively" end and side views or a guide bashing bracket and a guide bushing plate.

Figs. 26 and. 2'? are detail views of a guide bushing and the meanst'or holding it in the guidebushing platei Fig. 28 is a detail view of the plungc Fig. 31 is a sectional view taken along the line 3131 of Fig. 30.

Fig. 32 is a sectional view taken along the line32-32 of Fig. 30.

Fig. 33 is a plan view of one of'the cham tering indexing plates.

Fig. 34 is a sectional view taken along the line 34; of Fig. 33.

Fig. 35 is a plan view of the second fering indexing plate. 7 t Fig. 36 is sectional view taken along the line 36-36 of-Fig. 35. V l Fig; 37 is a-developed view of the chami'ering indexing plates. I 1

Fig. 38 is a' sectional view of themechanism connected to the chamfering indexing plates.

Fig. 39 is a detailed'view ofa portion or the mechanism operated by-the shipper wheel. I

Fig. 40 is a plan view of the gearing connected tothe chamferinghead shown to the left of Fig.1; V Fig. 4-1 isaplan view of thegearing con chamnected toithe cham'fering head shown to the right of Fig. 1.- w 1 j Reterring to the'drawings a combined machlne 1s shown having 111I18'StatlOIlS fO1 operating on blanks toproduce the'so called 7 button or split dies. A threadrdie adapted to be made in the machine is shown i Figspl0, 11 and i the-drawings. "The blank, whichis tobe operated on in the machine, is shaped: in accordance with the die shown in Fig. 10 and has a tapped.

hole in the center. Two of the stations of the machine serve to load andunload blanks in the blank-carrying member whichis pref erably. a turret. .Thefirst operative station in the" machine is provided'with means for stamping. the impressions 1, as shown on a die 2 in Fig. 10 of the drawings. At the next station in the machine,means is provided for .cuttlng the grooves 3 in theside of the. blank. Atthe next station an axial slot 4 is cut in the side of the blankand two four drilled holes and? ltocxtend into-the tappedhole 6-.and form cutting iedges 8. It

should be noted zthatbyccounterboring the drilled holes 5 and 7, ethe threads in the tapped hole 6 are :in :no -.way distorted or mutilated At the last operative :s'tatiojn, means are provided for relieving the cutting edges 8 adjacent the top andfbottom surfaces of theiblgank 2. Such relief, ;adj-acent theitop and bottom surfaces of thc..die,*;enable the finished blank to :be easily started on a -iai'ece of work. The relief for cuttingedges :is pmduced by means of i a 'chamfering operation, as will be hereinafter .set forth. ZIfso desired, the relieving 'ofwthe cut-lting.j. edges may be effected on oneisidetonly of the blank. However; it is preferable; to relieve the; cutting edges adjacent to the-top and bottom surfaces oftheiblanlx. V

The grooves 3, whichane;cut;inrthe;:sides ofathe blank, serve {ISiZlll-Dflllfi for attaching and holding the .completcd blank, in @a die stock.- -;'lhe slot-4, which.isicntiimthe side of the blank adjacentfto one ;oi'f.-thehole's '5, is e'e-xtencled =,into'.-'said 1 hole after the blank has :been removed ifrom the machine. The extending of the slot 4 into the hole.z5wand the hardening of the blank arfe :the; @only pelations- ,necessary for completing .a blank after ithas been operated onlrloy 1a machineconstrncted in-.accordance with my i vention. .Attention .is also called to the fact that the stamping operation is effected before the blank has :been weakened .by drilling any holes $t11TQLl gh 1 it, .with the; exception of the tapped hole in the center. Gonsequently, thewblank-is not distorted by suchistampingoperation.

The machine shown. in the drawings comprises aimain frame 9, whichtsupports a blank-carrying iturnet 1'0. Therturnet '10 is directly mounted on a turret shaft 11 which 7 has'befarings 12and' 13 "in Et-he main frame T holding th'eashaft 16 in any set position,

as::shown in igs. 1 -.and 18 .of the drawrags. In Fig. 18- ofth'e' drawings, the screw 18 is shown 1 in engagement with a shoe 20 which :directly engagesthe turret-supporting shaft 16. ZE referahly, theishoe '20 iscomposed ofwbrass. .The endzof the turretesupportin-g shaft 16 adjacent .to the: turret 1 0 sis provided with a countenboring portion 21 which rotatably -sapports o neend T of-the shaft 1-1.

A. screw 18,. WhiCh is ed on the shaft 11 adjacent to thebearing 12 and is held =in.engagementawith a shoulder portion .on theish-aftby meanslof all-11528.

Preferably, the washers 25 --.and 27 are pinned or keyed to the shaft 11 in any .suitable manner.

A cam shaft 29 is mounted in-tthe main 'framew) below ,=the turret {shaft 1 1. The

cam shaft 29 .is proyided .withbearings '30,

31, .321 andv 33 in the main. frame. The cam shaft 29 governs the indexing of'theturret floijalld'lfihe turret shaft -11 to successively bring each blank carried by the turretiinto operative relation to each-of the nine stations of the machine; The :cam shaft 129 carries cam members which respectively control the operating means at the ,seven operative stations. Thus, the various operations performed atmthe seven operative stations of the machine are effected in timed relation .to' the indexing oif the turret.

A worm wheel 34 is keyed totlie shaft 29 adjacent:to;the bearing 33 and is'held against longitudinal movement on the shaft by means of a nut 35 whichis held gin position on theshaft-by means of a pin or set screw. The worm wheel 34 meshes with a Worm member'36 Which isfixedlymo inted on a transverse shaftfi37, as shown in Figs. land 4 of-the drawingsn The transverse shaft 37-issupponted by a bracket 38 which is suitably mounted on the main-frame of the machine. A=pulley Wheel 39 is rotatably mounted on' the shaft 37-and is adapted to be directly connected to such-shaftby means of a clutch member-"40. Theclute'h member 40 is slitlably' mounted on the. shaft 37 and is keyed thereto in any suitable manner. when the clutch member .40 is moved towards the left, as shown in Fig; 4 of the drawings, the pulley 39 is connected to-the shaft 37 through .a' set of gearing to be described. However, when the clutch member 40 is moved to l-the right, as shown in Fig. 4 of the drawings, projections 41 from the clutch memberengage projections 42 from the'gliub "43 of the pulley '39 to di rec-tly connect the ipulley to theshaft. The relationo-f the clutch to the hub 43 of the pulley is shown in Figs. 4 and19 of (the drawings.,, :LIihe clu tch member '40 i is controlled by a bifurcated member 44 which is mountedon a r'odz4 5. 'Thejbifurcatedmember 44 is fitted to a groove 46-in the clutch member 40. The movement of the clutch member 40 is limited by hearing portions 47 and 48 in the bracket 38 for the shaft 37. The rod 45, which carries the bifurcated member 44, is slidably mounted in any suitable manner in the bracket 38. A spring member 49, which is mounted on the rod 45,

. is disposed between a portion 50 of the bracket 38 and'a collar 51 which is fixedly connected to the rod 45. Thus, the spring member 49 exerts a force tending to move the rod 45 so as to directly connect the pulley wheel 39 to the shaft 37 i A bell cranklever 52 having two arms 53 and 54 is rotatably mounted on an arm 55 which projects from the bracket'38, as shown in Figs. 1 and 4 of the drawings. Thelever arm 53 serves not only to move the rod 45 against the action of the spring 49 but also to operate a latch member 56. The latch member 56 is pivotally mounted on a lug 57 which projects from the bracket 38. The

latch member serves to engage a collar member 58 to hold the rod 45 in its extreme position towards the left, as shown-in-Fig. 4 of the drawings. The collanmember 58 is connected to the rod 45 by a set screw; and is held against longitudinal'movement by means of a nut 59. A springmember 60' is disposed between one end of the latch 56' and the bracket 38.1":or holding the opposite end of the latch in the path of movement of the collar member 58. Ascrew'61, which extends through the latch 56, isa'dapted to be engaged by a cam surface 62'locatednear the end of the lever arm 53, as shown in Fig. 39 of the drawings. The lever arm 53, when given a movement of rotation in one direction, engages the collar 58 to move the rod 45 towards the left, as shown in Fig. 4 of the drawings. Such movement of the rod 45 operates the clutch member 40 to break the direct connection between the pulley 39 and the shaft 37. When the lever arm 53 is given a movement of rotation in an opposite direction, the cam surface 62 engages the screw 61 to raise the end of the latch member 53 out of engagement with the collar 58. When the latch 56 is raised above the collar 58, the spring member 49 effects a movement of the rod 45 towards the right, as shown in Fig. 40f the drawings. Such movement of the rod 45 operates the clutch member 40 to effect a direct connectionbetween the pulley 39 and the shaft 37. A lug 63, which projects from the-lever arm 53,is adapted to engage a lug 64, which projects from the supporting-arm 55, to limit the movement-of the leverarm 53 when the rod 45 is operated toeff'ect -a direct connection'between the pulley 3'9 and the shaft 37. Y An eccentric member 65, which is rotatably mountedon the shaft 37 below: the collar member 58, is controlled by a1handle66.

The eccentric member is moved into engagement with the collar member 58 when it is desired to prevent movement of the rod 45 in accordance with the movement of'the "The bell crank lever 52 is operated by I means of a shipper wheel-67 which is edly mounted in any suitable manner near the end of the cam shaft 29. The shipper wheel carries adjustable lug members 68 and 69 which areadapted to engage the arm 54 of the bell crank lever 52 at predeter= mined times during the rotationof the ,cam shaft. One of the lug members, namely"the lug member68, is-adapted to engage the end of the lever 54 so as to give the bell crank lever '52 a movement of rotation in a clockwise direction, as shown in Fig. 40f the drawings. Such movement of the bell crank lever releases the latch 56 and effects a direct connection between the pulley 39 and the shaft 37. The second lug member 69, which is disposed an adjustabledistance from the lug member 68, serves to give the bell crank lever 52 a movement of rotation in a counter-clockwise direction.

operatethe clutch member 40' tobreak the direct connection between the pulley Wheel 39 and the shaft 37.

A gear wheel 70 is keyed to the shaft 37 adjacent to the pulley wheel 39, as shown in Fig. 19 of the drawings. A gear wheel 71 is mounted on the shaft 37 adjacent to the gear wheel 70 and is fixedly'connected, in any suitable manner, to a ratchet wheel 72. The gear wheel 71 and the ratchet wheel 72 are rotatably mounted on the shaft 37 and are held against longitudinal movement by means of the nut 73, as shown in Fig. 19 of the drawings. The gear wheel 71,1 which is connected to theratchet wheel 72, is smaller in' diameter than the gear wheel 70, which isfixed to the shaft 29, for a purpose to be hereinafter set forth. Two gear wheels 74 and 75, which respectively Such movement of the bell crank lever serves to" llll mesh with the gear wheels 70 and 71, are

' direction undercertain conditions,jas shown in Fig. 2 of thedrawings. 'The pawl mem ber 77 is pivotally mounted upon the bracket -381and' may be raised out of'engagement with the; ratchet wheel 72 by means of. a handle 78. Y I V In themechanism above described, it will be noted the shaft 37 carrying the worm member 36 'is .either directly connected ,to the pulley wheel 39by means of the-clutch member ttleto rotate at a rapid speed or is indirectly connected to such pulley wheel tend to give the ratchet wheel 72 a rotative' movement in a countereclochwise direction, as shown in Fig. 2. of the drawings. f HOlYfi ever, the pawl 77 engages the ratchet wheel 72 and prevents rotationof the {ratchet wheel 7 2 and the gear wheel 71. Inasmuch as the gear wheel .71 is held stationary-the gear wheels 74 and 7 5, inawelllrnown manner, effect rotation of theigear wheel' to rotate'the 'shaft 37 at a-orelativelyi low speed. The speed of rotation oft-he shaft 37 is dependent upon the difference in size between the gear wheels 70 and 71.

Theshipper wheel 67 andthe parts controlled thereby effect operation of the cam shaft 29; at a relatively rapid rate when the turret 10 is being indexedfromone position to another position. Moreover, the shipper wheel effects operation of the camshaft 29 at a relatively slow rate after the turret has been indexed to a new position and the means located at the various stations are operating on the blanks carried by the turret. r

Referring to a of the .drawi'n-gs:,-- the shlpper wheel 6'7 is shown rotating in a clockwise direction. The lug member 68 is shown in position just before moving the bell crank leyer52 to directly connect the pulley ;39 with the shaft 37 through the clutch 40. During the time that it takes the cam shaft 29 and the shipper wheel--67 to rotate so as to Operate thegbell crank lever 52 by the lugzmember 69. the indexing of the turret 10 is being! effected. The lug member69 engages the bell crank'leve'r 52 to operate the clutch member 40 so as-to connect the pulley 39 to the shaft 37through the: differential gearing. At such time, the operating means located at the; various station's operate on the blanks carried by the turret, 1Tjhe* shipper vwhee-1367 and the cam shaft 29 are given a movementmof rotation at a relatively rapid rate during the index ins. ep in- I caniin ember' wh-ich is mountedfioir the camshaft 29-.a-djacent to the bearingSO, is Provided ,fol effectingi an indexing operation of the turret 1-i0iand theturret shaft I'll. The cam member 80 is keyed to the shaft 29 and is held against longitudinal movement bycmean's of a nut 81. A rock lever 82' is pivotally mounted onqa stud bolt which is secured to themain frame ofthe machine. A rock lever nut 84 is mounted on therock lever .82 intermediate the ends thereof, as

shown in :Figs 1, 2,:3 and '13 of :the .drawings. A roller stud 85is :rotatablymounted in the nut 84 and carries a roIleI- SG Whiclr is adapted to operate cam groove 87 formed in the scam: ,whee l 80.- The roller stud '85 isheld-in position in the rock zle've'r n-ut;84: ;by means of nut 88.

A bifurcatedend portion 1891 of the rock lever A182 is pivotally connected to pawl lever 90- by means of a pin ;91-. 'T'he'pawl lever 90* is .pivotally' ,connected to a; pawl plate 92 which is secured any-suitable mainneriito an indexing motion plate- 93?. The motion ,plate'93' is rotatahly mounted on a" b shing- 9%, as shown in Figs. 1 2-, 3 and 28'of zthe drawings The bushing 94 lS-JllOllgntGd. on the turret shaft 11 adjacent to 'thegnut 2-81andis preferably .not only fit ted =toa tapered portion of the shaft 11 but is also skeyed' -to :such shaft. An indexing dial plate 95, whichjhas nine equally spaced notjches 96 formed in the periphery thereof, i

is fixedly mounted on {the bush-ingl lt The notches .:96 correspond to the nine stations of ,the machine Seyen of such stations,- heretoforexset forth, are operative stations and two of the stations are loading and uh loadingestations. The notches 96 in the indexing dialplate cooperate-with aplunger m'echanism 97 :to hold the turret shaft i l and theturretlO' in any set position while the means .atth'e various stations are operating on, the blanks. A ratchet wheel 98 is mounted On and secured tothb bushing 94; adjacent to the motionplate93i A washer 99 is pinned ito-the" shaft @1 1. adjacent to the ratchetiwheel 98 and a: nut-.100 is secured tokthesharft 1- 1: adjacent to the washer 99 for hold in'g thebushing and any of. the parts, carried thereby againstlongitudinal movement. Preferably, the nut 100 is pro;' vided with a set screw for insuring against any lmovementio'f :it on ltllE shaft II. The pawl1-plate-92 carries a pawl "101' which is adaptedtoueng'a ge the teeth on the ratchet Wheelfl98; spring member 102 is' pro- Vid'ed :for holding the pawl 101 in engagement with the ratchet wheel'98. It 'i's':1.1' parent the rotation of theficam member serveslto reciprocate theroc'ls lever 821; The rock lever'i82, operating through the :pawl lever 90, serves to give the motion plate 93 an oscillatory moveme t of rotation;- Dering-jthetmovrment of the" motion late 93 are clockwise direction, as shown; in Figs;

3 and 28 of the drawings, the pawl 101 engages the ratchet wheel 98 to index the shaft 11 andthe turret '10 from one position to the next position.

The plunger block mechanism comprises a block member 103 which is bolted to the main frame 9 of the machine. An L shaped cap member 105 is provided for covering the top and one end of-the block member. The top portion of the cap 105 is shown broken away in Fig. 28" of the drawings. Anend-portionlOd ofthe cap is bolted to the block 103 in'the port-ion shown in Fig. 28. 'lheblockrmember 103 is provided with aprojecting portion 108, as shown in 'Fi 1 f the drawings. which is fitted to a groove cut in the main frame 9 in order to securely hold the plunger block in a set position. A channel 109 is formed within theblock 103 and within such channel are fitted gib members 110 and 111 and a plunger 112. The plunger 112 is provided witlr an end portion 113. which is adapted to fit in. the notches 96 formedv in the indexing dial plate 95. The plunger carries a pin 11 1 which projects through a slot-115 in the plunger block cap for a purpose to be hereinafter set forth. A hole 116 is formed in the plunger 112 for carrying a spring member 117. One end of the spring member 117 abuts against the plunger 112 whereas the otherend there of abuts against a plunger screw 118 which extends through the end portion 104 of-the plunger block cap 105. i

A bolt 119, which extends through a hole in the end portion of the plunger block cap 105, is fitted to a tapped hole in the tapered gib member 110. The bolt 119 serves'to adjust the gib member 110 in a direction towards the right, as shown in Fig. 28 of the drawings. A second bolt 120, which is fitted to a tapped hole'in the end portion 104 of the plunger block cap 105,. engages the end of the tapered gib memberllO and serves to effect adjustment :of such gib member towards the left, as shown in Fig.28 of the drawings. ,Thespring member 117 exerts a force at all times tending to force the end portion 113 of the plun er in one of the notches of the indexing dial plate95.

A lat-ch plate 121 is secured to the'motion plate 93, in any suitable manner, and carries a'latch member 122. The latch member 122 is adapted to engage the pin 11 1 which projects from the. plunger. 112 through the plunger block plate 105, as-shown inFig. 28 of the drawings The latch member 122 is pivotally supportedo-n the latch plat'e121 by means of apin 123.. A- spring member Thus, when the motion plate 93 is given. a movement of rotation in a clockwise'direc tion, as shown in Figs. 3 and: 28, the latch member 122 iirst engages the pm 11 1 to securred to the motion plate 93 adjacent to the plunger mechanism 97. The plunger lock member'126 is provided with an arm 127 having a cam surface 128 near the end thereof which is adapted to engage the pin 114C. The cam surface 128'engages the pin 114:, when the motion plate'93 isgiven a movement of rotation in a counter-clocluvise direction, and locksth-e plunger 112 in en.- gagement with the indexing-dial plate until the motion plate is given a movement of rotation in a clockwise direction for the next indexing operation.

The turret is adapted to carry the nine blanks. seven of which are to be simultaneouslyoperated on at the various stations of the machine. Each of the blanks '2 is mounted in the turret10 in a similarmanner, and a description of themounting of only one blank in the machine will be given. The blank is fitted to awork bushing 129 shown in Figs. 14, 15, 16 and 17' of the drawings. The work bushing is fitted to a hole in the turret 10 and rests on shoulders 130.

as shown in Figs. 14 and 15 of the drawings. hen so mounted in the turret, the blank can be operatedon from either side of the turret. The work bushing 129 is cut away. at'131 in order to permit the cutting of the slot 4 in the blank 2. A portion of the turret 10 is cut away at 132 for the insertion of The sides of the work bushing 129 are cut away inorderto permit the operation of milling cutters for cutting thegrooves 3 in the sides ofthe blank. The turret 10 is provided with ellipticalopenings 133 which are-located on either side of the work bush-. ing 129 to permit the insertion ofmilling cutters for cutting the grooves 37in the side of the blank 2. The work bushing 129- is held in positionin the-turret by means of ascrew 134.

the tool which cuts the slot 4 in the blank.

r The blank2 isaheld in position the work bushing by means of aclamping member 135/ The clamplng member-airs provided with a bifurcated end p0rtion136 whichhas projecting portions137 to'engage the blank. The clamping member is secured to the turret' by meansof a bolt 138which extends through as-lot 139 in theturret.--: The bolt is preferably threada'bly connected "to the clampingimember 13 1,. as shown .in Fig. 15

of the drawings:v The end of, the clamping member 13.5, opposite tothebifurcated end The; lug: 140. engages" a wearing In order; to unlockaablank fromv theturret ;it is only necessary to lo'osenthe bolt 138 and' raise.- it" in: the slot 139,. thus loosening the blank which may beremojved frointhe work,

bushing 129. iiinew blankisathen placed in the Work bushing and the clamp is fastened; in. position.

The machine has nine stations,- as indi- At station: A the blanks 2 are successively loaded- 111:

cated inFig. 5 of the drawings.

the work bushings 129- of the turret. Con sidering the-turret 10 to rotate'in a;connterclockwisedirection, asshown in: Fig. 5 of the drawingsf,-.the-'first operative station encountered by a blank, after being loaded in the turret, is the stamping,- station B." The station adjoining. the stampingstation- Bisthe grooving station C where the-grooves 3 are cut inthe sideof each blank. At the station D, which adjoinsthe grooving station, the two holes 5 are silnultaneonsly drilled throughthe blank. Moreover," at such StatiOnD the slot 4; iscutin the/sideof the blank. The station E is. a drilling station at whichthe-twoholes' 7 are-drilled adjacent toithe tapped hole 6, inythecenten of the blank. At station F, which adjoins the drilling station E, the two holes *5, which were drilled at stationD, aresorcounterb'ored as to extend into thetapped hole'6 to form cutting edges. The; station is similar to the station F withthe exception that: the two holes 7%, Whicharedrilled at station E, are counterbored to extend into the tapped hole G-and form cutting edges. The last operative station H is provided with meansto ehamfer either orboth sides of the blank in such manner as to: relieve the cutting edges of the blank adjacent either the top or bottom surface of the blank or adjacent both surfaces:oftheblank.

The last station 1 serves as ,a-na'unloading statlonfor removlng the blanks 2 from the turret.

Referring to' Figs. 1, Sandie, a description will be given of the apparatus employedat station B fol-stamping each of the blanks 2. A cam drum 142, whichis keyed tothe camshaft 29 .between'the: bearings 32 and 33, is provided with a cam groove 143.. 1 They C3111 groove 143 serves .to a'ogvern the operation of the stamping'mechanisrn at station B. A cam lever 14 1 is provided with. an arm- 1 16' on which is mounted a roller stud 1 15. The stud 145 carries a rollermeinber 1&7 which is fitted to the cam groove 14am the cam drinn 14z2. A shaft link 148, which has bifurcated. end portions, is pivotally connected by a pin 1429 to the cam lever 114,

as shoitnfin 1 of-ithe drawings:-

otherbifurcated end- DOI'tiOII'; Of the; shaft link 1 18; is pivotally connected.- t0! a shaft; by; means a of a pina 1511?- The shaifti'lm has a bearing 152 on the fra1ne=9 OfuthQ U fi chine. An adjustable coillarfmemberz 15.3718

secured totheshafti150 inany suitable man? ner andserves to engage the bearing"152 to limit j the longitudinal incitement of. the

shaft towards'theri'ght as shown iirF-i-g. 1 of: the drawings; A-iwe'aring 'button-154-is fittedto the end of; the shaft 150;

A shaft 155 having a bifurcated endpork tion 156 is seeuredjto the cam lever 144 by. means of a pina157. The shaft; 155; is] sup,

ported in bearings 158 and: 15,9whieh pros ject from. the? side of the main frame 9,

The diameter of the shaft .155 islarger at? the bearing 158 than: at the-bearing- 159, and? consequently, aishoulder 160 is formed between sucli, bearingsi A; collar: member: 161-, which is secured to the-"shaft 155adjaoent-to such shoulder-portion, serves-.to.,-engage the bearing 158-to 'limitithe movementl of the shaft 15:5 towards the left, as shown in Fig. 1 of the drawings; 9

A plate162,W hich=is:bolted to@thebaseiofi frame9 of'the machine-M1167, 168 and 1-69! Set screws 170 arie'provided vfor-piikwenting longitudinal movement of the lever rod 1.66. Lever blocks 171 and. l72-aresecured to the respeotiveiendsxof the levee rod 160. andpreferably aneheld in set positionnby means of set screws. The lever block 171' is provided with a bifurcated; portion: which is pivotally connected to a lever 173 by: means of a' pin 174. One endaof! thevleve'n 173is provided with a projecting portion 175 whichiiis adapted toengage the wearingabut toii 154 in' the end 031' the/shaft; E50." The opposite end of? the lever1f7 3 carries a'bolt 1 76*W'hicl1' is' held in any set .p'ositiongby a nut 177; The bolt-176 is adapted toengage a wearing button 178 in the end of alt anvil: shaft 179. i i I i The lever block 172, which is secured to one end of the lever rod 166', is provided with" a bifurcated end portion which is se l cured to alever 180 by means of a pin 181. The lever .180is provided with a bifurcated end portion 182 which is fitted-torth shaft 155. The bifurcated portion 182 of the shaft 180 is provided with projecting or wearing ortions hich are adapjcedz'tcem gage tnejeollar' 1:61:- The opposite end (it the lever 1S1) 'cap'isa' bolt which: is held- 7 formed in the bearings.

in any set position by a nut 184. The bolt 183 is adapted to engage a wearing button 185 in the end of a ram shaft 186. The rain shaft 186 is provided with a portion 187 which projects througha bearing 188 in the frame 9 of the machine. is located adjacent to the blank which has been indexed to station B. The end of the ram shaft 186, which carries the wearing button 185 is somewhat larger in diameter than the portion 187 so as to form a shoulder 189. A portion 190 of the bearing 188 is formed to fit the enlarged portion of the rain shaft 186. lVithin such enlarged portion of the bearing is located a spring memher 191. One end of the spring member abuts against a shoulder formed in the hearing and the other end abuts against the shoulder 189 which is formed on the ram shaft 186. Such spring member 191 serves to hold the ram shaft in engagement with the lever 180. A ram screw 192, which extends into the bearing 188, is so shaped as to fit in a keyway 198 out in the enlarged portion of the ram shaft 186. Such ram screw serves to insure the ram shaft against any rotative movement.

A stamping die holder 194 is threadably connected to the end 187 of the ram shaft 186. Preferably, the stamp holder is held in surh position on the ram shaft by a set screw. A stamping die 195 is secured in the end of the stamp holder- 194 in any suitable manner and preferably by means of set screws. The stamping die 195 stamps an impression in the blanks 2 as they are successively indexed to position B. The stamping die 195 is so positioned as to form impressions in the blank at'points between the holes 5 and 7 which are to be drilled in each blank at stations D and E. p

The anvil shaft 179 is aligned with the ram shaft 186. However, the ram shaft and the anvil shaft are disposed on opposite sides of the turret 10. The anvil shaft 179 is provided with an enlarged portion 190 which is provided with a bearing 197 in the frame 9 of the machine. The enlarged portion 190 of the anvil shaft carries the wearing button 178. A middle portion 198 of the anvil shaft is of much smaller diameter and is provided with a bearing in a hub member 199 which is secured in any suitable manner to the main frame 9 of the machine. A spring member 200 is located on the shaft 179 within an enlarged portion One end of the spring member abuts against a shoulder formed on the shaft and the other end thereof abuts against a shoulder formed in the hub member 199. Such spring member exerts a force tending to hold the anvil shaft in engagement with the end of thelever 173. The anvil shaft is provided with a The portion 187 Y reduced end portion 201 which projects into the turret 10 to engage the blank.

The stamping mechanism is shown inFig. 1 of the drawings in position for effecting an impression of the stamping die 195 on a blank In such position of the stamping mechanism, the cam lever 144 has been so moved by the cam groove 143 in the cam drum 142 as to straighten a toggle joint that is formed by the shaft link 148 and a portion of the'cam lever 144. When an impression of the stamping die is being made on the blank, the toggle joint formed by the shaft link and the cam lever are sopositioned as to have the pins 157, 149 and 151 substantially in alignment. In moving the cam lever 144 and the shaft link 148 to such position, the lever 173 is given a movement of rotation in a clockwise direction and the lever 180 is given a movement of rotation in a countenclockwise direction. Such movement of the levers 180 and 17 3 forces the ram shaft 187 and the anvil shaft 179 against the action of the spring memhere 191. and 200 into engagement with opposite sides of the blank. After an impression has been made in theblank 2, the cam slot 143 so operates the cam lever 144 as to raise the pin 149 above the pins 151 and 157 and .thus loosen the so called toggle joint. At such time the spring members 191 and 200 move the ram shaft and the anvil shaft'away from the blank 2 and the turret 10 to permit the indexing of the turret 10 to bring another blank into ,operative relation to the stamping station.

Referring to Figs. 1 to 7, inclusive, the grooving operation, which is accomplished at station C, will be described. The grooves 3 are cut inthe side of a blank '2 -simultaneously and at the same time as the other stations are operating on various other blanks. The grooving head slide plate 201 is directly secured to the main frame 9 of the machii'ieby means of bolts. A projecting portion 202 on the plate is fitted to a slot in the main frame 9 in order to insure the plate against any longitudinal movement during the operation of the machine. A grooving head slide 203 is mounted on the plate 201. The slide 203 is provided with strap members 204 which engage shoulder portions 205 on the plate 201, as shown in Fi 5 of the drawings. The straps 204 are suitably connected to the slide 203 by screws, and a gib member 206 is preferably disposed between the slide 203 and the plate 201, as shown in Fig. 5. of the drawings. A stud 207, whichis threadably' connected to the slide 203, as shown in Figs. 1 and 5 of the drawings, projects through an elongated slot 208 in the plate 201." A roller member 209, which is mounted on the end of the stud 207, operates in 

